Interstate 840 North Carolina

The future roadways for Interstate 840 at Joseph Bryan Boulevard. This section should open in March 2018. Photo taken 12/15/16.


Interstate 840 follows completed sections of the north Greensboro Loop. Located in the vicinity of the Triad, a rapidly growing region in north-central North Carolina, I-840 will eventually form a complete loop around the city from Interstates 40 and 73 by Piedmont Triad International Airport (PTI) to the west and Interstates 40, 85 and 785 near Stewarts Mill to the east. Interstate 73 comprises the southwestern quadrant of the Greensboro Loop, with I-85 representing the southeast section.

The southern half of the Greensboro beltway was completed as of February 2008. Work on the northern half of the beltway continued with construction underway in August 2014 on project U-2424B: the freeway extension north from U.S. 70 to U.S. 29 through northeast Greensboro. Started in October 2013, project U-2524C constructs a six-lane freeway north from Bryan Boulevard (I-73) and U.S. 220 (Battleground) north of Greensboro. Work scheduled for 2018 (Project U-2525C) will build the final segment of the Greensboro Loop, from U.S. 29 west to Lawndale Drive. Completion of the Greensboro Loop is anticipated for December 2020. Project details, maps and an FAQ are available at the NCDOT: Greensboro Urban Loop web site.


The initial section of the Greensboro Loop completed was the two-mile segment north from Interstate 40 and 85 to U.S. 70. Located east of Greensboro and signed as Future I-840, the segment opened to traffic in 2002.

Subsequent construction for Interstate 840, between I-40 west of Greensboro and Joseph Bryan Boulevard, was underway during the week of September 8, 2003. The $101.6 million project was expected to open to traffic by summer 2007, but was delayed until February 21, 2008. Citing potential benefits to Piedmont Triad International Airport (PTI) area traffic congestion, this leg of the Greensboro Urban Loop was prioritized by state officials.1 The west leg of the loop was dually signed as Future I-73 and I-840.

In their September 2017 meeting, the Special Committee on U.S. Route Numbering conditionally approved two additional segments of I-840: one extending from its split with I-73 and Bryan Boulevard to U.S. 220 in northwest Greensboro, and the other continuing from U.S. 70 on the east side of the loop northward to U.S. 29.2 These sections will be completed by March 2018 and December 2018, respectively.3

Highway Guides

Western Terminus - Interstates 40 and 73 & U.S. 421 - west of Greensboro, North Carolina
Perspective from Interstates 73 & 840 south
Passing over Market Street, Interstates 73 & 840 progress southward with three lanes through to the directional cloverleaf interchange (Exit 1) with Interstate 40 and U.S. 421. Photo taken 12/15/16.
Motorists headed west on I-40 & U.S. 421 to Winston-Salem or east on Interstate 40 to Downtown Greensboro depart in unison from Interstate 73 south as I-840 west ends. Photo taken 12/15/16.
Perspective from Interstate 40 east
Having just partitioned with a three-lane ramp for the Greensboro Loop south (I-73 & U.S. 421), drivers along I-40 east next reach a loop ramp (Exit 212B) for I-73 & 840 north to Joseph M. Bryan Boulevard. Temporary guide signs were posted prior to the completion of I-73 along the N.C. 68-U.S. 220 Connector in 2017. Photo taken 12/15/16.
Eastern Terminus - Interstates 40 and 85 - east of Greensboro, North Carolina
Perspective from Interstates 840 east & 785 south
Interstates 785 & 840 trend eastward from the Clapp Farms Road overpass to the directional cloverleaf interchange (Exit 21) with Interstate 40 & Business Loop I-85. Photo taken 12/15/16.
Exit 21 partitions from the freeway mainline for I-40 west into Greensboro and east with I-85 north to Burlington. A wye interchange follows, taking Interstate 785 south onto I-85 south toward High Point. Photo taken 12/15/16.
Perspective from Interstate 40 east & Business Loop I-85 north
Signs installed in 2017 added Interstate 785 for Exit 227, where I-40 east meets both I-85 south back toward High Point and I-840 north to U.S. 70. Photo taken 12/15/16.
Interstates 785 and 840 will overlap north from I-40 to U.S. 29. The U.S. 29 corridor doubles as Future I-785 northeast from the Greensboro Loop to Danville, Virginia. Photo taken 12/15/16.


  1. "Work to begin this week on new section of Greensboro loop." News & Record (Greensboro), September 10, 2003.
  2. AASHTO Special Committee on U.S. Route Numbering Meeting Minutes, September 24, 2017
  3. Greensboro Urban Loop (NCDOT official page)

Page Updated October 12, 2017.


State North Carolina
Mileage 5.77
Cities Greensboro
Junctions I-40, I-73, I-85, I-785
Source: December 31, 2016 Interstate Route Log and Finders List
The Greensboro beltway carries U.S. 421 and Interstates 73 and 85 along the Painter Boulevard portion (southern half). Interstates 73 & 840 overlap north to Bryan Boulevard. I-785 accompanies the east leg of the loop to make its connection to U.S. 29 north to Danville, Virginia.
Interstate 840 north at U.S. 70 and the temporary freeway end east of Greensboro. This section will be completed in December 2018. Photo taken 12/15/16.

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